Multi Element Sort XmlDocument [WITHOUT LINQ]

Question

我有下面的Xml结构。

<Root>
<Customers>
<Customer>
<ID1>100</ID1>
<ID2>5555</ID2>
<OtherElements />
</Customer>
<Customer>
<ID1>200</ID1>
<ID2>445</ID2>
<OtherElements />
</Customer>
<Customer>
<ID1>30</ID1>
<ID2>58878</ID2>
<OtherElements />
</Customer>
<Customers>
</Root>

我想用ID1 ASC和ID2 ASC排序顺序重新安排客户节点。请帮助我在没有XSLT和LINQ的情况下实现这一点。

感谢

Answer 1

好吧，.NET框架的XPath/XLTL实现在XPathExpression:上公开了一个排序功能

        XmlDocument doc = new XmlDocument();
        doc.Load("file.xml");
        XPathExpression customers = XPathExpression.Compile("/Root/Customers/Customer");
        customers.AddSort("ID1", XmlSortOrder.Ascending, XmlCaseOrder.LowerFirst, "", XmlDataType.Number);
        customers.AddSort("ID2", XmlSortOrder.Ascending, XmlCaseOrder.LowerFirst, "", XmlDataType.Number);
        XmlElement parent = doc.DocumentElement["Customers"];
        foreach (XPathNavigator cust in doc.CreateNavigator().Select(customers))
        {
            parent.AppendChild(cust.UnderlyingObject as XmlNode);
        }
        doc.Save(Console.Out); // for testing, use Save("file.xml") to save

输入为

<?xml version="1.0" encoding="utf-8" ?> 
<Root>
<Customers>
<Customer>
<ID1>100</ID1>
<ID2>5555</ID2>
<OtherElements />
</Customer>
  <Customer>
<ID1>200</ID1>
<ID2>445</ID2>
<OtherElements />
</Customer>
  <Customer>
<ID1>30</ID1>
<ID2>58878</ID2>
<OtherElements />
</Customer>
</Customers>
</Root>

输出是

<Root>
  <Customers>
    <Customer>
      <ID1>30</ID1>
      <ID2>58878</ID2>
      <OtherElements />
    </Customer>
    <Customer>
      <ID1>100</ID1>
      <ID2>5555</ID2>
      <OtherElements />
    </Customer>
    <Customer>
      <ID1>200</ID1>
      <ID2>445</ID2>
      <OtherElements />
    </Customer>
  </Customers>
</Root>